Hi,
Just to keep you up-to-date, the "slack-get remove <packages list>" command now works correctly (although I still need to do tons of testing) and the "slack-get update" command is on the good way.
Once it will be finished, the "slack-get upgrade <packages list>" will also be ready because both of those commands are closely bounded.
The difference between the two commands is pretty simple :
while the "upgrade" one allow you to upgrade (download + upgradepkg) a named list of packages, the "update" command check for all updates available in <repository root>/patches/packages/.
On a freshly installed Slackware 12.0 you get the following output (click on the image to enlarge it) :

That's all for today. See you later for the development diary.

Arnaud Dupuis.